Billionaire philanthropist and entrepreneur Karim Al-Hussaini, also known as Aga Khan IV — the 49th hereditary Imam of Shia Ismaili Muslims — passed away in Lisbon, Portugal, on Tuesday at age 88.
His charity, the Aga Khan Development Network, announced the death of the Switzerland-born British citizen in a statement without detailing the cause of his death. He is survived by his three children, his brother, his half-sister, and four grandchildren.
Al-Hussaini was passionate about horse racing and breeding and owned private jets, a $200M super-yacht, and a private island in the Bahamas, with a wealth estimated at between $800M and $13B — inherited and from investments.
The world has lost a visionary leader whose influence stretched far beyond his spiritual role. Thrust into leadership at just 20, Aga Khan IV transformed his position into a force for global development, blending faith with pragmatic action. Through his philanthropy, he uplifted millions — investing in education, healthcare, and infrastructure in some of the world’s most fragile regions. His commitment to pluralism and progress leaves an enduring legacy of compassion and change.
Aga Khan IV straddled the worlds of faith, business, and high society with remarkable ease. While hailed for his philanthropy, his extravagant lifestyle often personified a contradiction between his spiritual leadership and material excess. His financial empire, fueled by contributions from followers, blended altruism with calculated investment, blurring the line between genuine benevolence and strategic self-interest. In the end, his mercurial celebrity was dazzling but also paradoxical.